Pneumatic conveyer.



PATENTED FEB. l2, 1907 .A

G. L. Govs PNEUMATIacoNy-EYER.

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APPLIOATION FILED APE.27, 1906.

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CLARENCE L. GROVICS, OF HARTFORD CITY, INDIANA', ASSIGX OR, BY DIRE T AND MESNE ASSIGNMENTS, Ol" OXFeHr-XLF TO GEORGE R. MYERS AND ONE-HALF TO l?. J. D. LARMOYEUX, OF I'IARTFORD CITY, INDIANA.

PNEUMATIQCONVEYER.

Specification of Letters Patent.

Patented Feb. 12, 1907.

Application filed April 27, 1906. Serial ll', 314,028.

Be. it known that l, CLARENCE L. Giun'ns, a citizen of the United States, residing,T at Hartford City, in the county of Blackford and State of indiana, have invented new and useful improvements in Pneumatic )onveyers, of which the'following is a specification. l

This invention relates to pneumatic conveyers or elevators such as are used for transporting grain andsiniilar material, although they may be used for other purposes, if desired.

Pneumatic conveyers 'of the class indicated as heretofore constructed have been pro- 'vided with a fan-chamber having a lateral inlet and a tangential outlet for the grain. This form of conveyor is objectionable by reason of the fact that is is necessary for the grain to turn at an angle after entering the fan-chamber from the side in order to pass out through the tangential Outlet.

The object of my invention is to improve the construction of pneumatic conveyers by dispensing with the side inlet and employing a tangentially-arranged inlet whereby to increase the strength and to decrease the amount of power necessary for operating the fan. l y

Wvith the for oing and other objects in gf appear as the description proceeds, the invention resides'in the combination and arrangement of paris and in the details of construction hereinafter described and claimed.

In the accompanying drawings, forming part of this specification, Figure 1 is a side elevation of a pneumatic conveyer constructed in accordance with the invention. Fig- 2 is a plan viewfthereof. Fig. 3 is a vertical section, partly in elevation. Fig. 4 is a transverse section on the line 4 4 of Fig. 3.

Lilie reference. numerals.indicate corresponding paris in the different views of the drawings,

The reference numeral l indicates the frame or support of the conveyor, which may be of any suitable form and construction.

The numeral 2 indicates the fan-chamber, which preferably is circular in form. Secured to each side of the fan-chamber 2 is an integral casting 3, having attaching-lugs 4, which are fastened to the tan-chamber by bolts or other suitable devices Each of the cast ings 3 is formed with a ournal-box 6, through which extends thc fan-shaft T. The castings B rest upon the framework 1,- and thus serve to support the fan-chamber and fan-shaft in a thoroughly eilieient and inexpensive n1an Suitably secured upon the fan-shaft 7 are the fan-blades 8, which may he cf any desired forni and construction.

Leading into the fan-chamber 2 is an upwardly-inclined feed-pipe S), which istangentially arranged with respect, to the fanchamber, as shown clearly in Fig. 3. At the point where tho feed-pipe 9 joins the fanchalnbcr 2 an air-inlet 1() is formed in the fan-chamber to permit the entrance of air duringjr the rotation of the fan.

Removably iii ted into the upper end of the feed-pipe 9 is a bell-pipe r flared hopper 11. Vhile the bell-pipe 1 1 may be held in place in any suitable manner, said pipe is preferably secured in position by means of a flange or lip 12, which is secured thereto in such a man-` ner as to fit over theupper edge ofthe feedpipe 9, as shown inFigs. 2 and The lower ilattened end of the bell-pipe or hopper 11 preferably is of less width than the upper flattened end of -the feed-pipe 9, for which reason air-inlets 13 are provided on opposite sides of said pipe l l, as shown clearlyinglfig. 2.

ln order to clean the interior or the fanchamber whenever necessary or desirable, a sliding door 14 is provided in the lower ortion thereof. Adjacent to the sliding,r c oor 14 the fan-chamber is provided with a fangentially-arranged outlet-pipe 15, to which is suitably secured a conveying-pipe 1G. The conveying-pipe 16 is provided with a pair of branch pipes 17 and 1S in the usual manner. The conveying-pipe .16- is also )rovided with a suitable dollecting gate o r valve 10, having a handle 20, by-means of which thc grain may be deflected into either one or the other of the branch pipes 17 and 1S.

l/Vhile the fan 8 may be driven in any suitable manner it is preferable that said fan be operatedby means of a small beltewheel 21,

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and that it be provided with a laree'- balancevantages.

into the hopper 1l and is drawn down into termed with journal-boxes for the fan-shaft,

the fan-chamber by the suction of a fan, this indrawing of the grain being facilitated by the suction of air through the openings 13 and through the air-inlet 10. It is found in practice that a neuinatie oonveyer of the `Character deseri ed posesses man3T advan` tages over eonveyers in which the grain enters the fan-chamber through openings in the sides thereoil adj aeent to the fan-shatts- Changes in the precise embodiment ot the invention illustrated and described may he made within the scope of the vfollowing claims without departing from the spirit oi' the invention or sacriiieing any1 of the ad- What l' claim is- 1. A pneumatic eonveyer having a fan, a fan-Chamber, a tangential feed-pipe, an airinlet to the an-ehanilwr adjacent to the -pointwhere the tangentialfeed-pipe connects with the chamber, a door in the lower portion of the fan-chamber, and a tangential outlet-pipe.

2. A pneumatie convoyer having av fan` a.

tan-chamber, a tangential feed-pipe, an airoutlet-pipe having a pair of b ranch connected thereto anda gate or valve therein for deileoting the grain into either one of the branch pipes.

3. A nieumatie eonveyer having a ian, a. fan-ahail i i l i.

a supporting-trame connected with the eastings, a tangential feed-pipe leading into the fan-chamber, and a tangential outlet-pipe for the fan-chamber.

4. A pneumatic eonveyer having a fan, a fan-chamber, a tangential feed-pipe, a hopper connected with the upper end of the said feed-pipe and being smaller at its lower end than said `feed-pipe so Ias to provide a plurality of air-inlets at the upperend of' the feed-pipe, and a tangential outlet for the 'ianchamber.

5. A pneumatic eonveyer having a fan, a. fan-shaft, a tan-chamber, integral castings secured to the sides of the fan-chamber and formed with journal-boxes for the fan-shaft, an upwardly inclined tangential feed pipe leading into the fan-chamber, an air-inlet to 2 the iianrhaniher adjacent to the tangential feedfpipe7 a hopper having a flange 'itting over the upper et ge of the 'feed-pipe and he- 1 ing smaller at its lower end than the feed- 1 pipe so to provide a plurality Otau-inlets,

a sliding door in the lower portion of the lian- 1 chamber, a tangential outlet adjacent to the inlet to the fan-chamber adjaoent to the point where the tangential feed-pipe conneots with the chamber, a door in the .lower portionof the fan-ohainber, and a tangei'itial pipes t, a fan-chamber, integral castings seeured to the sides oi the fan-chamber and 1l.

sliding door7 a conveying-pipe having a deA fleeting-valve, and a pair of hraneh pipes connected with the eonveying-pipe and controlled by the deileeting-valve.

ln testimonyv whereof l aH'iX my Signature in presence of two witnesses.

@LAR ENCE li. GROVES.

Witnesses'.

(l. M. l'lBARn, lY. l. Kuhn. 

